Icom HF/VHF/UHF ALL MODE TRANSCEIVER, iC-706MKTMG manual If ﬁlters

Page 63

OPTIONAL INSTALLATIONS/SETTINGS 10

■CR-282HIGH-STABILITY CRYSTAL UNIT

By installing the CR-282, the total frequency stability of the transceiver will be improved.

➀Remove the bottom cover as shown on the oppo- site page.

➁Remove the 5 screws and 2 ﬂat cables holding the PLL unit in place.

➂Remove the existing crystal unit.

➃Put the CR-282 in the space available as shown in the diagram.

➄Adjust the reference frequency at L601 (also R602 and L623 if necessary) using a frequency counter (60.00000 MHz).

➅Return the shield case and bottom cover to their original positions.

CR-282 frequency stability: ±0.5 ppm (–30°C to +60°C; –22°F to +140°F)

ribbon	PLL unit (bottom)
cable

existing crystal

L623

Reference freq. c (60.00000 MHz)

ribbon	CR-282 L601 R602
cable

■IF ﬁlters

Several IF ﬁlters are available for the IC-706MKIIG. Choose a ﬁlter most appropriate to your operating needs.

Note: After ﬁlter installation, specify the installed ﬁlter using initial set mode (items 9, 10). Otherwise, the installed ﬁlter will not function properly.

FL-100CW NARROW FILTER		500 Hz/–6 dB
FL-101	CW NARROW FILTER	250 Hz/–6 dB
FL-103	SSB WIDE FILTER	2.8 kHz/–6 dB
FL-223	SSB NARROW FILTER	1.9 kHz/–6 dB
FL-232	CW/RTTY NARROW FILTER	350 Hz/–6 dB

➀Remove the top cover as shown on the previous page.

➁Install the desired ﬁlter as shown in the diagram

below.

•These ﬁlters can be installed in either direction.

➂Replace the top cover.

Filter

60

Image 63

Contents I706MKG Word Definition Rwarning PrecautionsTable of Contents Panel Description Front panel0MAIN Dial Tension Latch @2PREAMP/ATTENUATOR Switch P.AMP/ATT 2LOCK Switch LockFunction switches Function p VOX Function pSpeech Compressor p BREAK-IN pRear and side panels When connecting the ACC conversion cable OPC-599 ACC PIN # Name Description Specifications ColorACC Socket Function display 1DOT Matrix Indicators3FUNCTION Indicators 4DSP IndicatorsHM-103 Schematic Diagram ➊UP/DOWN Switches UP/DN ➋LOCK Switch Lock➌PTT Switch PTT Microphone ConnectorGrounding Installation and ConnectionsPL-259 Connector Installation Example UnpackingFront panel separation InstallationSingle body mounting StandRtty Terminal Required connectionsAdvanced connections Connecting a NON-ICOM Power supply connectionsConnecting the PS-85 DC Power Supply Connecting a NON-ICOM DC Power SupplyExternal antenna tuners and linear ampliﬁer Connecting the AH-4Connecting the AT-180 Connecting the IC-PW1Power OFF Frequency SettingWhen ﬁrst applying power CPU resetting Initial settingsVFO VFO ModeMemory Mode pgs VFO descriptionBand selection Frequency settingProgrammable tuning steps Hz and 10 Hz tuning stepsSub dial function MHz quick tuning stepTS Switch Flow Chart SSB/CW/RTTY modes Any mode FM/WFM/AM modes➁ Push F-1-F-3 to select a band stacking register Mode selectionOperating Mode Selection Quick band change functionRIT function Receive and TransmitFunctions for receive If shift functionPeak meter hold Noise blankerAGC time constant Preamp and attenuatorRF gain and squelch Simple band scopeRF/SQL control priority SSB Filter PresettingOptional ﬁlter selection Filter ON/OFFCeiver maintains the ON/OFF condition when pushing F-2NR ANF Automatic Notch Filter functionNR Noise Reduction function Output power and mic gain Functions for transmitDMeter function VOX operation Speech compressorManual Tuning Optional AT-180 Automatic Antenna Tuner operationTuner Operation PTT tune function ➂ The Tuner light lights constantly when tuning is completeOptional AH-4AUTOMATIC Antenna Tuner operation AH-4 operationSplit lock function Split frequency operationQuick split function ➀ Select VFO a and set the frequency to 7.057 MHz/CW➄ Push and hold PTT to transmit release PTT to receive Repeater operation➂ Push F-3SCN to toggle tone scan operation on and OFF Tone squelch operationTone scan operation ➅ Communicate in the usual mannerFrequency Duplex Direction One-touch repeater functionAuto repeater function This function automatically activates the repeater setElec KEY Functions for CWConnections for CW CW operationCW pitch control CW reverse modeDElectronic CW keyer Quick SET Mode Setting the electronic keyerFunctions for Rtty Connections for Rtty FSKConnections for Afsk Presetting for Rtty Rtty FSK operationRtty Afsk operation Data socket Adjusting the transmit signal output from the TNCPacket operation Connections for packetMeasuring SWR Spot measurementPlot measurement Memory clearing Memory and Scan OperationMemory channels Memory channel selectionProgramming in VFO mode Programming in memory modeMemory/call programming Editing programming memory names Frequency transferringMemory names Calling up memory names➀ Select the S1 display Memo padsWriting frequencies and operating modes into memo pads Calling up a frequency from a memo padPreparation Scan typesPriority watch Programmed scan operationMemory scan operation Select memory scan operationRemote Jack CI-V Information CI-V connection exampleData format VFO A=B Command TableGeneral SET ModeQuick set mode operation Initial set mode operationQ4 VOX Gain SSB/AM/FM only Quick set mode itemsQ3 VOX Delay SSB/AM/FM only Q2 MIC Gain SSB/AM/FM onlyQ5 Anti VOX SSB/AM/FM only Initial set mode items RF/SQL SQL/AUTO/RFSQL DUP HF duplex offset Quick Split quick split functionSplit Lock split lock SPL Offset split offsetScan Resume scan resume AM NB Noise blanker in AM modePWR on CHK Power on check Auto Rptr auto repeaterVsend SEL ACC socket output 29 9600 Mode Data socket speedTune Strt auto tuner start PTT Tune PTT tune functionCI-V TRN CI-V transceive LVL Spch S-level speechCI-V Addres CI-V address CI-V Baud CI-V data rateCleaning MaintenanceFuse replacement Memory backupPower Supply Receive Problem Possible Cause Solution TroubleshootingTransmit Display Scan Problem Possible Cause Solution Opening the transceiver case Optional INSTALLATIONS/SETTINGSIf ﬁlters DOperation InstallationAT-180 internal switch description S2 S1 B aPIN no Description Name Internal Views Top viewBottom view Options SP-21EXTERNAL Speaker SP-7EXTERNAL SpeakerSP-10EXTERNAL Speaker SP-12EXTERNAL Speaker SP-20EXTERNAL SpeakerSpecifications Indication Description No. Indication + power onPower OFF then on to exit initial set mode Menu GuideMenu Display SSB/AM/FM mode CW mode Rtty modeMode Display For 2 secCount on us